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If (cos x )/(a)= (cos (x + theta))/( b )...

If `(cos x )/(a)= (cos (x + theta))/( b ) = ( cos (x + 2 theta ))/( c) = (cos (x + 3 theta ))/( d) ` then `(a+c)/(b+d)` is equal to

A

`a//d`

B

`c//d`

C

`b//c`

D

`d//a`

Text Solution

Verified by Experts

The correct Answer is:
C
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